Zentyal Server aims at offering small and medium businesses (SMBs) a native drop-in replacement for Windows Small Business Server and Microsoft Exchange Server which can be set up in less than 30 minutes and is both easy to use and affordable.

CacheGuard Appliance is an all-in-one OS appliance providing firewall, antivirus, caching, compression, bandwidth allocation, load balancing, reverse and forward proxy, high availability, Web application firewall, URL guarding, and more. It can be purchased as an OS to install on your server, as an OS to run in a virtual machine, or as a hardware appliance.

IIR is a C++ library that implements fast IIR filters: bandpass, bandstop, lowpass, and highpass. These can be designed using popular analogue filter functions such as Butterworth, Bessel, Chebyshev, Elliptic, Legendre, and pole placement. Creation of a complete filter requires only a single command and filtering is performed with a single function taking a sample and returning its result instantly. The library is template-based and avoids new/mallocs throughout.
This library has been adapted form Vinnie Falco's original work and has been converted to run on Unix systems and turned into a realtime causal filter.

ISP-fW is a firewall script which provides port forwarding, packet filtering, stateful packet inspection, port redirection, masquerading, SNAT/ DNAT, TOS, and generation of htb rules for bandwidth management. It includes a Web interface for easy access. It's useful for ISPs which want to separate National traffic from International traffic.

Aobo Internet Filter Professional is an Internet filtering and porn blocking tool that helps Mac OS X users to block porn websites, stop games and applications, and record accessed Web sites. It blocks websites by keywords and URLs. Users can easily export and import settings, and synchronize settings with an FTP site.

jui_filter_rules is a jQuery plugin which is useful to create dataset filter rules as JSON objects and the relevant WHERE SQL. As a JavaScript control, it can be integrated with any server-side technology (e.g., PHP, Perl, ASP, JSP, and more) and any database. A helper PHP jui_datagrid class is available. It can parse rules to SQL, supporting "ADODB" and "POSTGRES". The ADODB drivers tested are mysql, mysqlt, mysqli, pdo_mysql, and postgres. It's compatible with modern Web browsers and has been tested with Google Chrome, Mozilla Firefox, Microsoft Internet Explorer >= 8, and the Android browser.